docs(memorystore): added valkey leaderboard snippets

[dackers86]

Description

Fixes #

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Sample Format Guide
• pom.xml parent set to latest shared-configuration
• Appropriate changes to README are included in PR
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• Tests pass: mvn clean verify required
• Lint passes: mvn -P lint checkstyle:check required
• Static Analysis: mvn -P lint clean compile pmd:cpd-check spotbugs:check advisory only
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[ghost]

Hi @dackers86 and reviewers,

I'm currently reviewing this pull request and will provide my feedback in a few minutes. In the meantime, I'm providing this summary of the pull request's content to help you and other reviewers quickly understand the changes and intent.

This pull request, "docs(memorystore): added valkey leaderboard snippets", adds several new Java code snippets demonstrating how to use Google Cloud Memorystore to implement a leaderboard. The changes are focused on adding functionality for managing and querying leaderboard data.

Here's a breakdown of the changes:

• New Files: The PR introduces new Java files located in the memorystore/valkey/leaderboard/snippets directory. These files contain code snippets for:
  • Adding or updating scores to the leaderboard (MemorystoreAddScore.java).
  • Retrieving the leaderboard sorted in ascending order (MemorystoreFilterByAsc.java).
  • Retrieving the leaderboard sorted in descending order (MemorystoreFilterByDesc.java).
  • Implementing leaderboard pagination (MemorystoreLeaderboardPagination.java).
• pom.xml File: A pom.xml file was added to the memorystore/valkey/leaderboard/snippets directory, defining the project dependencies, including Jedis (a Redis client) and Google Cloud Client Libraries.

The PR also includes a comprehensive checklist to ensure code quality and adherence to Google's standards. The author has indicated that tests and lint checks have passed.

I'll provide a more detailed review shortly, but this summary should give you a good starting point.

---

Here's a little poem to brighten your day:

Code flows like a stream,
Tests pass, a joyful gleam,
Review, swift and clean.

Thanks!
Gemini

[ghost]

This pull request adds new Java snippets for interacting with Memorystore (Redis) for leaderboard functionality. The code generally looks good, but there are a few improvements that can be made.

I've summarized the key points from the Google Java Style Guide that were referenced in this review below:

• Javadoc comments should be present for all public classes and methods.
• Use descriptive variable names.
• Close resources properly in try-with-resources blocks.
• Use parameterized types for collections.
• Avoid unnecessary boxing and unboxing.

It's important to ensure the code adheres to these guidelines for better readability and maintainability.

[fewtrell]

should we rename the 'filter' file names to 'sortby' as well?

[telpirion]

See comments on #9986 .